Improvement in lamp-burners



No. 97,854. Y

J. B. ALEXANDER.

Lamp Chimney Holder.

minesses MPETER$ PHOTO-LIH IOGHAPHERI WASHINGTON, D. O.

Patented Dc. 14, 1869."

To an whom 'it may concern .2 v

, 0, the chimney-seat.

Josnrn ALEXANDER, or WASHINGTON, DISTRICT orcoLUM IA.

I Letters Patent 97,854, dated December 14, 1869.

I IMPRO EMENT IN LAMP-BURNERS.

i I v The Schedule. referred to in these Letters Patent and making part of the same.

. Be it known thatI, J'osErH,BE L ALEXANDER, of WVashington, in thecounty of Washington, and District of Columbia, have] invented a new and useful Improvement i 'rLainp-Bnrners; and I do hereby the following, wheirtaken in connection with'the accompanying drawings, and the letters of reference marked thereon, tobe a full, clear, and exact dcscription of the same,and which said drawingsiconstitute part of this specification, and represent, -in

'Figure 1, a side view'ot' the'entire burner, in per spective l Figure 2, a, vertical section ofthe entire burner; Figure 3, a side view of the chimney-seat, body, or shell, and'deflector, as struckup from one and the samepiece of metal, in perspective;

Figure 4, a perspective View of a circular peripheral spring, as struckv from oneland the same piece ofmetal; it Figure 5, the perforated draught-plate, in perspective;andin 1" v R Figure 6, a side view, in perspective, of the wickadjuster;and wick-tube, with their casing as when separated from the removable part of the burner.

Similar letters of reference denote like parts whereever they occur in. the several figures, as follows:

A, the deflector.

B, the body or shell.

1), the circulanperipheral spring. i E, the corrugatedand perforated draught-plate. 1 F, the cap enclosing the wick-tube and wick-adjuster.

G the base, on which is cut the usual screw. H, a circular throat, struck up in the centre of the draught-plateE, to admit of its slipping on and oil the cap F. l p

I I, holes, to admit a current of cold air upon the inside of the base of thcglass chimney i K K, perforations in the draught-plate E, to-supply cold air to the flame. a p

-L L, projections.struck. up on the inner circumference of the throat H, on the plate E.

M M, L-shaped indentures, struck in the sides of the cap-1+,to admit the projections L L, and constitute a bayonet-lock.

; N N, comb-like O, a circular throat,strnck downward in the centre of the spring I), whichis made to slip tightly on the shell 13.

P, the wick-tube.

R, the wick-adjuster;

S, the flame-slot. I This invention is an improvementupon an imwill proceed to describe teethupon the periphery of the. spring D.- l l proved lamp-burner, patented to me Mai-ch16, 1869, and numbered 87,898, and consists int-he peculiar construction of the burner, and the arrangement for the support of the chimney, i To enable others to construct my improvement, 1 the same, as illustrated in the accom panying drawin a \Vith a series of proper dies, I should strike up a circular'blank, of sheet-metal, into a conical-shaped piece, as seen in fig. 3, and so form it as to constitute ,the deflector A, shell or body B, and chimney-seat G, from one and the same piece of metal.

' Around the lower part or this I should perforate the holes I I, for the purpose of admitting a current 'of cold air upon theinside of the base ofthe chimney, to keep it cool, and also to supply invariably the exact amount of air to the flame above the deflector, as is necessary to perfect complete combustion.

The proper number and size of the holes I 1 is most important to the success of obtaining complete combustion, and a very bright white light, which,

when once obtained in this burner, is unchangeahl'e, as the great variations in 'the sizes of commercial chimneys make no increase or diminution in the volume of air supplied to the flame above the deflector. i

' The reverse of thisis found in all burners with an elevated deflector, supported upon posts or standards, for with them it will be found that the air supplied to the flame above the deflector is deficient, or in excess, according to the variation in the size of the chimney, and the flame clouded, red, or smoky, as the consequence. I

Having perforated the holes I I, I should then cut the flame-slots.

-I should then, with a proper blanking-die, punch out of sheet-metal, of proper thickness, a circular piece, having comb-like teeth upon its periphery, radiating'from the centre, and a circle pnnchedout of its centre for the purpose of forming the throat 0..

' I should then; with a proper die, strike this toothed metal ring, so as to form the downward throat or band 0, and give the teeth N N. the proper downward curve. I I This forms the circular peripheral spring,'as seen in fig. 4. l

I should then, with a proper die, pressthe spring D, fig. 4, upon the piece A B O, fig. 3, and fasten it there by pointing, fig. 1.

I should then, with a proper blanking and-periorating-die, punch from slreetonetal, the circular piece,

soldering, or swagnLg, as seen in fig. 5, with its air-holes K K, and a circular piece punched from the centre, for the purpose of forming the throat or band H, which I .should form with a v I proper die, and with another suitable die force inward the projections L L.

Thus I should form the draught-plate E, fig. 5, which must be, of the exact diameter to fit into a grooved edge, at the base of the piece, fig. 3, which grooved edge is turned over upon the edge of the draught-plate E, fig. 3, with a proper die, 'so as to swage the two pieces together, as seen in fig. 2.

This completes the upper or removable part of the burner. 4

I shouid then form the cap F, fig. 6, and with a suitable die, force into its opposite sides the L-shaped indentures M M, to correspond with and admit the projections L L, in the band H, of the draught-plate E, fig. 5.

I should then make the base G with its screwthread, fig. 6, after the usual manner, and insert into it a'wick-tube and wick-adjuster, in the ordinary way. I should then put on the cap F, so as to complete the form, seen in tight by swagiug or soldering the parts together.

If this part, as seen in fig. 6, be now screwed into the collar of a lamp, the upper or removable portion may he slipped on or off at will, and locked firmly when on, by a slight twist, causing the projections L L to slip into the bayonet-lock indentures M M, as seen in figs. 1 and 2.

The chimney is attached by simply pushing it down over the teeth N N, of the spring D, in a direct manner, as no twisting is required.

.desire to secure by Letters Patent, is

This invention is a decided improvement upon the patent granted to me March 16, 1869, and has many superior advantages to render it useful and'popular as a kerosene or light-oil burner.

I do not claim the use of a circular peripheral spring for supporting. a chimney on a lamp-burner, when such spring is a part of or attached to a deflector elevated upon studs or posts, as in the patent of M. H. Collins, dated September 19, 1865, and others of the same nature.

What I do claiin as new, and as my invention, and

1. The spring D, with its curved teeth N N, and its throat-O, substantially as described, and for the purpose set forth.

2. The L-shaped indentures M M, in the cap F, in combiuationwith theprojections L Den the inner circumference of the throatH, in the draught-plate E, substantially as described, and for the purpose set forth.

3. The combination of the spring D, withthe piece A B 0, comprising the deflector, shell or body, and chimney-seat, and with the draught-plate E, together with the wick-tube 1?, cap F, base G, and any of the wick-adjusters in use, when arranged together, subtantially as described, and for the purpose set forth.

J. B. ALEXANDER.

\Vitnesses:

A. M. 81:01:11, A. M. Srour, Jr. 

